Method floorPowerOfTwo

output/java_guava/1.4.18/BigIntegerMath.java:71–74

Returns the largest power of two less than or equal to x. This is equivalent to BigInteger.valueOf(2).pow(log2(x, FLOOR)). @throws IllegalArgumentException if x <= 0 @since 20.0

(BigInteger x)

   */

  @Beta
  public static BigInteger floorPowerOfTwo(BigInteger x) {
    return BigInteger.ZERO.setBit(log2(x, RoundingMode.FLOOR));
  }

  /**
   * Returns {@code true} if {@code x} represents a power of two.